Sturgeon is the common name for the 27 species of fish belonging to the family Acipenseriformes. Sturgeon evolution dates back to the era of dinosaurs. They are long-lived, late-maturing fish with distinctive characteristics. Several species can grow quite large, typically ranging 7–12 ft in length.​ Here are several of the best caviar producing sturgeon: Beluga, or Great, sturgeon ( Huso huso ): Beluga sturgeon typically weigh 80 to 400 pounds when harvested and may weigh